Serotonin May Worsen Tinnitus Despite Antidepressant Benefits
Scientists discovered that serotonin—the brain chemical boosted by many antidepressants—may actually worsen tinnitus, the condition of hearing ringing in the ears. The finding raises questions for people taking SSRIs for depression or anxiety.
Unexpected Link Between Serotonin and Tinnitus
Scientists have uncovered evidence that serotonin — the same brain chemical boosted by many antidepressants — may actually worsen tinnitus. Using advanced light-based brain stimulation in mice, researchers identified a serotonin-driven circuit that worsens the condition.
Clinical Relevance
This finding has potential implications for people taking SSRIs (selective serotonin reuptake inhibitors) and other antidepressants for depression, anxiety, or other conditions. Researchers identified the mechanism in mice and now researchers are exploring how this translates to human health.
Research Approach
The study used cutting-edge light-based brain stimulation techniques to map the neural circuits involved, revealing the unexpected role of serotonin in tinnitus progression.